<!DOCTYPE html>
<html>
<head>
<script src=" https://apps.bdimg.com/libs/jquery/2.1.4/jquery.min.js"></script>
</head>
<body>

<from>
第一个数字：<br>
<input type="text" id="num1">
<br>
第二个数字：<br>
<input type="text"id="num2">
<br>
运算结果：<br>
<p id="result">结果将在这里显示</p>
</from>
<button id="add">+</button>
<button id="subtract">-</button>
<button id="multiply">×</button>
<button id="divide">÷</button>

	</body>
</html>